HYDRO26467

• Permit No: C1980007
• IBM Index Class Name: Hydrology
• Doc Date: 11/1/2004
• Doc Name: Biomonitoring Report dated August 13, 2004
• From: SeaCrest Group
• To: Mountain Coal Company
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

~~
The SeaCrest Group
Louisville, CO

Permittee: ~,`` ~` ``
YV~Ti
IWC%:
Age 8 Source:
Test Conditions:
one um
& Rep 0
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3 5
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Daphnid Acute Benchsheet
Slte: V~'~L1
Template #: Sample Date:
~.~ ~ 7 b (.1.~. Test Started: r-
7.1 zo.°I $ g~Z 31a
s l.0 ~ lp 21,o 21,0 .0 ~,Z
5 ~, b zl. o ~. ~ 3, S

y 1•Z 20.5 ~3 35b
1.1 7,s 21.0 2i o $.2
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Form #:102a
'' ii 11 Effective: February 2002
Lab #: 30 `'i. W
Dilution Water. (u~!'t
Test Ended: OZ 2'-L ~t -Il.n'2~,
%s„ ~,..cc<Ft~ • AtE. Z-1-uMr~i '~
P Cond cwt 5<'~ Ic-*~
24 48 mho «1 }tom d ~ iok+~-
chlorine m /I ~O.pt
ammonia 1st m /I
.,........~~., ~...~ r.....m ~-
1 . Exposure Chamber
Total Capacity: 30 ml Test Solution Volume: 15 ml
Test Solution Surtace Area: cm` Water Depth (constant): cm
(cyclic): cm
2. Feeding Schedule
Not Fed: Fed Daily:
Fed Irregularly: X Food Used: YCT, Algae
(describe): fed 1-2 hour s before test
3. Aeration
None:
Before Use: ~_ minutes @ -100 bubbles/min)
4. Screened Animal Enclosures
Not Used: X Used: cm diameter
5. Condition/appearance of surviving organism s at end of test (i.e., alive but immobile, loss of
or ientation, erratic movement, etc.):

6. Comments: